Altamira, Brazil - A cluster of 12 men from the Xikrin tribe chant in their native language while marching together, arms interlocked, stomping their feet against the dry red dirt. They say this is their call of resistance from the Amazon.

A hospital in Riobamba, Ecuador, offers patients traditional indigenous Andean medicine alongside Western treatments.When a patient arrives they are asked what beliefs they have - and then if appropriate they are referred to a "yachak" (or shaman) instead of a conventional doctor.The traditional treatments offered include "limpias" or spiritual cleansing treatments, which are meant to clean the patient's aura.

In the rolling meadow below Mohawk Mountain in the northwest corner of Connecticut, a white buffalo baby trots alongside his massive mother, his whiteness highlighted against her dark brown winter fur that is still molting in the summer heat.

At the old Winnemem Wintu village of Kaibai, which lines the emerald waters of the McCloud River Arm of Shasta Lake in Northern California, a trio of sacred sites cast a “mist” of spiritual energy during the tribe’s Coming of Age ceremonies for their young women, says Chief and Spiritual Leader Caleen Sisk.